I'm having problem some problems authenticating against openLDAP, and I
think the answer may be in the openLDAP logfile, but I don't know how to
read it right. It looks like successful binds look like this:

The big difference as far as I can tell is the tag=101 vs the tag=97.
I've gone through the code and the docs, but I can't figure out what the
tag= means. I think it uses some %lu variable from
servers/slapd/result.c, but can't trace back to where the %lu comes from.